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- /* The GIMP -- an image manipulation program
- * Copyright (C) 1995 Spencer Kimball and Peter Mattis
- *
- * X10 and X11 bitmap (XBM) loading and saving file filter for the GIMP.
- * XBM code Copyright (C) 1998 Gordon Matzigkeit
- *
- * The XBM reading and writing code was written from scratch by Gordon
- * Matzigkeit <gord@gnu.org> based on the XReadBitmapFile(3X11) manual
- * page distributed with X11R6 and by staring at valid XBM files. It
- * does not contain any code written for other XBM file loaders.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* Release 1.0, 1998-02-04, Gordon Matzigkeit <gord@gnu.org>:
- * - Load and save X10 and X11 bitmaps.
- * - Allow the user to specify the C identifier prefix.
- *
- * TODO:
- * - Parsing is very tolerant, and the algorithms are quite hairy, so
- * load_image should be carefully tested to make sure there are no XBM's
- * that fail.
- */
-
- /* Set this for debugging. */
- /* #define VERBOSE 2 */
-
- #include "config.h"
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <ctype.h>
-
- #include <gtk/gtk.h>
-
- #include <libgimp/gimp.h>
- #include <libgimp/gimpui.h>
-
- #include "libgimp/stdplugins-intl.h"
-
-
- /* Wear your GIMP with pride! */
- #define DEFAULT_USE_COMMENT TRUE
- #define MAX_COMMENT 72
- #define MAX_MASK_EXT 32
-
- /* C identifier prefix. */
- #define DEFAULT_PREFIX "bitmap"
- #define MAX_PREFIX 24
-
- /* Whether or not to save as X10 bitmap. */
- #define DEFAULT_X10_FORMAT FALSE
-
- typedef struct _XBMSaveVals
- {
- gchar comment[MAX_COMMENT + 1];
- gint x10_format;
- gint use_hot;
- gint x_hot;
- gint y_hot;
- gchar prefix[MAX_PREFIX + 1];
- gboolean write_mask;
- gchar mask_ext[MAX_MASK_EXT + 1];
- } XBMSaveVals;
-
- static XBMSaveVals xsvals =
- {
- "###", /* comment */
- DEFAULT_X10_FORMAT, /* x10_format */
- FALSE,
- 0, /* x_hot */
- 0, /* y_hot */
- DEFAULT_PREFIX, /* prefix */
- FALSE, /* write_mask */
- "_mask"
- };
-
- typedef struct _XBMSaveInterface
- {
- gint run;
- } XBMSaveInterface;
-
- static XBMSaveInterface xsint =
- {
- FALSE /* run */
- };
-
-
- /* Declare some local functions.
- */
- static void query (void);
- static void run (gchar *name,
- gint nparams,
- GimpParam *param,
- gint *nreturn_vals,
- GimpParam **return_vals);
-
- static gint32 load_image (gchar *filename);
- static gint save_image (gchar *filename,
- gchar *prefix,
- gchar *comment,
- gboolean save_mask,
- gint32 image_ID,
- gint32 drawable_ID);
- static gint save_dialog (gint32 drawable_ID);
- static void save_ok_callback (GtkWidget *widget,
- gpointer data);
- static void comment_entry_callback (GtkWidget *widget,
- gpointer data);
- static void prefix_entry_callback (GtkWidget *widget,
- gpointer data);
- static void mask_ext_entry_callback (GtkWidget *widget,
- gpointer data);
-
- GimpPlugInInfo PLUG_IN_INFO =
- {
- NULL, /* init_proc */
- NULL, /* quit_proc */
- query, /* query_proc */
- run, /* run_proc */
- };
-
- MAIN ()
-
- #ifdef VERBOSE
- static int verbose = VERBOSE;
- #endif
-
- static void
- query (void)
- {
- static GimpParamDef load_args[] =
- {
- { GIMP_PDB_INT32, "run_mode", "Interactive, non-interactive" },
- { GIMP_PDB_STRING, "filename", "The name of the file to load" },
- { GIMP_PDB_STRING, "raw_filename", "The name entered" }
- };
- static gint nload_args = sizeof (load_args) / sizeof (load_args[0]);
-
- static GimpParamDef load_return_vals[] =
- {
- { GIMP_PDB_IMAGE, "image", "Output image" }
- };
- static gint nload_return_vals = (sizeof (load_return_vals) /
- sizeof (load_return_vals[0]));
-
- static GimpParamDef save_args[] =
- {
- { GIMP_PDB_INT32, "run_mode", "Interactive, non-interactive" },
- { GIMP_PDB_IMAGE, "image", "Input image" },
- { GIMP_PDB_DRAWABLE, "drawable", "Drawable to save" },
- { GIMP_PDB_STRING, "filename", "The name of the file to save" },
- { GIMP_PDB_STRING, "raw_filename", "The name entered" },
- { GIMP_PDB_STRING, "comment", "Image description (maximum 72 bytes)" },
- { GIMP_PDB_INT32, "x10", "Save in X10 format" },
- { GIMP_PDB_INT32, "x_hot", "X coordinate of hotspot" },
- { GIMP_PDB_INT32, "y_hot", "Y coordinate of hotspot" },
- { GIMP_PDB_STRING, "prefix", "Identifier prefix [determined from filename]"},
- { GIMP_PDB_INT32, "write_mask", "(0 = ignore, 1 = save as extra file)" },
- { GIMP_PDB_STRING, "mask_extension", "Extension of the mask file" }
- } ;
- static gint nsave_args = sizeof (save_args) / sizeof (save_args[0]);
-
- gimp_install_procedure ("file_xbm_load",
- "Load a file in X10 or X11 bitmap (XBM) file format",
- "Load a file in X10 or X11 bitmap (XBM) file format. XBM is a lossless format for flat black-and-white (two color indexed) images.",
- "Gordon Matzigkeit",
- "Gordon Matzigkeit",
- "1998",
- "<Load>/XBM",
- NULL,
- GIMP_PLUGIN,
- nload_args, nload_return_vals,
- load_args, load_return_vals);
-
- gimp_install_procedure ("file_xbm_save",
- "Save a file in X10 or X11 bitmap (XBM) file format",
- "Save a file in X10 or X11 bitmap (XBM) file format. XBM is a lossless format for flat black-and-white (two color indexed) images.",
- "Gordon Matzigkeit",
- "Gordon Matzigkeit",
- "1998",
- "<Save>/XBM",
- "INDEXED",
- GIMP_PLUGIN,
- nsave_args, 0,
- save_args, NULL);
-
- gimp_register_load_handler ("file_xbm_load",
- "xbm,icon,bitmap",
- "");
- gimp_register_save_handler ("file_xbm_save",
- "xbm,icon,bitmap",
- "");
- }
-
- static gchar *
- init_prefix (gchar *filename)
- {
- gchar *p, *prefix;
- gint len;
-
- prefix = g_basename (filename);
-
- /* Strip any extension. */
- p = strrchr (prefix, '.');
- if (p && p != prefix)
- len = MIN (MAX_PREFIX, p - prefix);
- else
- len = MAX_PREFIX;
-
- memset (xsvals.prefix, 0, sizeof (xsvals.prefix));
- strncpy (xsvals.prefix, prefix, len);
-
- return xsvals.prefix;
- }
-
- static void
- run (gchar *name,
- gint nparams,
- GimpParam *param,
- gint *nreturn_vals,
- GimpParam **return_vals)
- {
- static GimpParam values[2];
- GimpRunModeType run_mode;
- GimpPDBStatusType status = GIMP_PDB_SUCCESS;
- gint32 image_ID;
- gint32 drawable_ID;
- GimpParasite *parasite = NULL;
- gchar *mask_filename = NULL;
- GimpExportReturnType export = GIMP_EXPORT_CANCEL;
-
- INIT_I18N_UI();
- strncpy (xsvals.comment, _("Created with The GIMP"), MAX_COMMENT);
-
- run_mode = param[0].data.d_int32;
-
- *nreturn_vals = 1;
- *return_vals = values;
- values[0].type = GIMP_PDB_STATUS;
- values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
-
- #ifdef VERBOSE
- if (verbose)
- printf ("XBM: RUN %s\n", name);
- #endif
-
- if (strcmp (name, "file_xbm_load") == 0)
- {
- image_ID = load_image (param[1].data.d_string);
-
- if (image_ID != -1)
- {
- *nreturn_vals = 2;
- values[1].type = GIMP_PDB_IMAGE;
- values[1].data.d_image = image_ID;
- }
- else
- {
- status = GIMP_PDB_EXECUTION_ERROR;
- }
- }
- else if (strcmp (name, "file_xbm_save") == 0)
- {
- image_ID = param[1].data.d_int32;
- drawable_ID = param[2].data.d_int32;
-
- /* eventually export the image */
- switch (run_mode)
- {
- case GIMP_RUN_INTERACTIVE:
- case GIMP_RUN_WITH_LAST_VALS:
- gimp_ui_init ("xbm", FALSE);
- export = gimp_export_image (&image_ID, &drawable_ID, "XBM",
- GIMP_EXPORT_CAN_HANDLE_INDEXED |
- GIMP_EXPORT_CAN_HANDLE_ALPHA );
- if (export == GIMP_EXPORT_CANCEL)
- {
- values[0].data.d_status = GIMP_PDB_CANCEL;
- return;
- }
- break;
- default:
- break;
- }
-
- switch (run_mode)
- {
- case GIMP_RUN_INTERACTIVE:
- case GIMP_RUN_WITH_LAST_VALS:
- /* Possibly retrieve data */
- gimp_get_data ("file_xbm_save", &xsvals);
-
- /* Always override the prefix with the filename. */
- mask_filename = g_strdup (init_prefix (param[3].data.d_string));
- break;
-
- case GIMP_RUN_NONINTERACTIVE:
- /* Make sure all the required arguments are there! */
- if (nparams < 5)
- {
- status = GIMP_PDB_CALLING_ERROR;
- }
- else
- {
- gint i = 5;
-
- if (nparams > i)
- {
- memset (xsvals.comment, 0, sizeof (xsvals.comment));
- strncpy (xsvals.comment, param[i].data.d_string,
- MAX_COMMENT);
- }
-
- i ++;
- if (nparams > i)
- xsvals.x10_format = (param[i].data.d_int32) ? TRUE : FALSE;
-
- i += 2;
- if (nparams > i)
- {
- /* They've asked for a hotspot. */
- xsvals.use_hot = TRUE;
- xsvals.x_hot = param[i - 1].data.d_int32;
- xsvals.y_hot = param[i].data.d_int32;
- }
-
- mask_filename = g_strdup (init_prefix (param[3].data.d_string));
-
- i ++;
- if (nparams > i)
- {
- memset (xsvals.prefix, 0, sizeof (xsvals.prefix));
- strncpy (xsvals.prefix, param[i].data.d_string,
- MAX_PREFIX);
- }
-
- i += 2;
- if (nparams > i)
- {
- xsvals.write_mask = param[i - 1].data.d_int32;
- memset (xsvals.mask_ext, 0, sizeof (xsvals.mask_ext));
- strncpy (xsvals.mask_ext, param[i].data.d_string,
- MAX_MASK_EXT);
- }
-
- i ++;
- /* Too many arguments. */
- if (nparams > i)
- status = GIMP_PDB_CALLING_ERROR;
- }
- break;
-
- default:
- break;
- }
-
- if (run_mode == GIMP_RUN_INTERACTIVE)
- {
- /* Get the parasites */
- parasite = gimp_image_parasite_find (image_ID, "gimp-comment");
-
- if (parasite)
- {
- gpointer data;
- gint size;
-
- data = gimp_parasite_data (parasite);
- size = gimp_parasite_data_size (parasite);
-
- strncpy (xsvals.comment, data, MIN (size, MAX_COMMENT));
- xsvals.comment[MIN (size, MAX_COMMENT) + 1] = 0;
-
- gimp_parasite_free (parasite);
- }
-
- parasite = gimp_image_parasite_find (image_ID, "hot-spot");
-
- if (parasite)
- {
- gpointer data;
- gint x, y;
-
- data = gimp_parasite_data (parasite);
-
- if (sscanf (data, "%i %i", &x, &y) == 2)
- {
- xsvals.use_hot = TRUE;
- xsvals.x_hot = x;
- xsvals.y_hot = y;
- }
- gimp_parasite_free (parasite);
- }
-
- /* Acquire information with a dialog */
- if (! save_dialog (drawable_ID))
- status = GIMP_PDB_CANCEL;
- }
-
- if (status == GIMP_PDB_SUCCESS)
- {
- gchar *temp;
- gchar *mask_prefix;
- gchar *dirname;
-
- temp = mask_filename;
-
- if ((dirname = g_dirname (param[3].data.d_string)) != NULL)
- {
- mask_filename = g_strdup_printf ("%s/%s%s.xbm",
- dirname, temp, xsvals.mask_ext);
- g_free (dirname);
- }
- else
- {
- mask_filename = g_strdup_printf ("%s%s.xbm",
- temp, xsvals.mask_ext);
- }
-
- g_free (temp);
-
- /* Change any non-alphanumeric prefix characters to underscores. */
- temp = xsvals.prefix;
- while (*temp)
- {
- if (!isalnum (*temp))
- *temp = '_';
- temp ++;
- }
-
- mask_prefix = g_strdup_printf ("%s%s", xsvals.prefix, xsvals.mask_ext);
-
- if (save_image (param[3].data.d_string,
- xsvals.prefix,
- xsvals.comment,
- FALSE,
- image_ID, drawable_ID) &&
-
- xsvals.write_mask &&
-
- save_image (mask_filename,
- mask_prefix,
- xsvals.comment,
- TRUE,
- image_ID, drawable_ID))
- {
- /* Store xsvals data */
- gimp_set_data ("file_xbm_save", &xsvals, sizeof (xsvals));
- }
- else
- {
- status = GIMP_PDB_EXECUTION_ERROR;
- }
-
- g_free (mask_prefix);
- g_free (mask_filename);
- }
-
- if (export == GIMP_EXPORT_EXPORT)
- gimp_image_delete (image_ID);
- }
- else
- {
- status = GIMP_PDB_CALLING_ERROR;
- }
-
- values[0].data.d_status = status;
- }
-
-
- /* Return the value of a digit. */
- static gint
- getval (gint c,
- gint base)
- {
- static guchar *digits = "0123456789abcdefABCDEF";
- gint val;
-
- /* Include uppercase hex digits. */
- if (base == 16)
- base = 22;
-
- /* Find a match. */
- for (val = 0; val < base; val ++)
- if (c == digits[val])
- return (val < 16) ? val : (val - 6);
- return -1;
- }
-
-
- /* Get a comment */
- static gchar *
- fgetcomment (FILE *fp)
- {
- GString *str = NULL;
- gint comment, c;
-
- comment = 0;
- do
- {
- c = fgetc (fp);
- if (comment)
- {
- if (c == '*')
- {
- /* In a comment, with potential to leave. */
- comment = 1;
- }
- else if (comment == 1 && c == '/')
- {
- gchar *retval;
-
- /* Leaving a comment. */
- comment = 0;
-
- retval = g_strstrip (g_strdup (str->str));
- g_string_free (str, TRUE);
- return retval;
- }
- else
- {
- /* In a comment, with no potential to leave. */
- comment = 2;
- g_string_append_c (str, c);
- }
- }
- else
- {
- /* Not in a comment. */
- if (c == '/')
- {
- /* Potential to enter a comment. */
- c = fgetc (fp);
- if (c == '*')
- {
- /* Entered a comment, with no potential to leave. */
- comment = 2;
- str = g_string_new (NULL);
- }
- else
- {
- /* put everything back and return */
- ungetc (c, fp);
- c = '/';
- ungetc (c, fp);
- return NULL;
- }
- }
- else if (isspace (c))
- {
- /* Skip leading whitespace */
- continue;
- }
- }
- }
- while (comment && c != EOF);
-
- if (str)
- g_string_free (str, TRUE);
-
- return NULL;
- }
-
-
- /* Same as fgetc, but skip C-style comments and insert whitespace. */
- static gint
- cpp_fgetc (FILE *fp)
- {
- gint comment, c;
-
- /* FIXME: insert whitespace as advertised. */
- comment = 0;
- do
- {
- c = fgetc (fp);
- if (comment)
- {
- if (c == '*')
- /* In a comment, with potential to leave. */
- comment = 1;
- else if (comment == 1 && c == '/')
- /* Leaving a comment. */
- comment = 0;
- else
- /* In a comment, with no potential to leave. */
- comment = 2;
- }
- else
- {
- /* Not in a comment. */
- if (c == '/')
- {
- /* Potential to enter a comment. */
- c = fgetc (fp);
- if (c == '*')
- /* Entered a comment, with no potential to leave. */
- comment = 2;
- else
- {
- /* Just a slash in the open. */
- ungetc (c, fp);
- c = '/';
- }
- }
- }
- }
- while (comment && c != EOF);
- return c;
- }
-
-
- /* Match a string with a file. */
- static gint
- match (FILE *fp,
- gchar *s)
- {
- gint c;
-
- do
- {
- c = fgetc (fp);
- if (c == *s)
- s ++;
- else
- break;
- }
- while (c != EOF && *s);
-
- if (!*s)
- return TRUE;
-
- if (c != EOF)
- ungetc (c, fp);
- return FALSE;
- }
-
-
- /* Read the next integer from the file, skipping all non-integers. */
- static gint
- get_int (FILE *fp)
- {
- int digval, base, val, c;
-
- do
- c = cpp_fgetc (fp);
- while (c != EOF && !isdigit (c));
-
- if (c == EOF)
- return 0;
-
- /* Check for the base. */
- if (c == '0')
- {
- c = fgetc (fp);
- if (c == 'x' || c == 'X')
- {
- c = fgetc (fp);
- base = 16;
- }
- else if (isdigit (c))
- base = 8;
- else
- {
- ungetc (c, fp);
- return 0;
- }
- }
- else
- base = 10;
-
- val = 0;
- for (;;)
- {
- digval = getval (c, base);
- if (digval == -1)
- {
- ungetc (c, fp);
- break;
- }
- val *= base;
- val += digval;
- c = fgetc (fp);
- }
-
- return val;
- }
-
-
- static gint
- load_image (gchar *filename)
- {
- FILE *fp;
- gint32 image_ID, layer_ID;
-
- GimpPixelRgn pixel_rgn;
- GimpDrawable *drawable;
- guchar *data;
- gint intbits;
- gint width = 0;
- gint height = 0;
- gint x_hot = 0;
- gint y_hot = 0;
- gint c, i, j, k;
- gint tileheight, rowoffset;
-
- gchar *name_buf;
- gchar *comment;
-
- guchar cmap[] =
- {
- 0x00, 0x00, 0x00, /* black */
- 0xff, 0xff, 0xff /* white */
- };
-
- fp = fopen (filename, "rb");
- if (!fp)
- {
- g_message (_("XBM: cannot open \"%s\"\n"), filename);
- return -1;
- }
-
- name_buf = g_strdup_printf (_("Loading %s:"), filename);
- gimp_progress_init (name_buf);
- g_free (name_buf);
-
- comment = fgetcomment (fp);
-
- /* Loosely parse the header */
- intbits = height = width = 0;
- c = ' ';
- do
- {
- if (isspace (c))
- {
- if (match (fp, "char"))
- {
- c = fgetc (fp);
- if (isspace (c))
- {
- intbits = 8;
- continue;
- }
- }
- else if (match (fp, "short"))
- {
- c = fgetc (fp);
- if (isspace (c))
- {
- intbits = 16;
- continue;
- }
- }
- }
-
- if (c == '_')
- {
- if (match (fp, "width"))
- {
- c = fgetc (fp);
- if (isspace (c))
- {
- width = get_int (fp);
- continue;
- }
- }
- else if (match (fp, "height"))
- {
- c = fgetc (fp);
- if (isspace (c))
- {
- height = get_int (fp);
- continue;
- }
- }
- else if (match (fp, "x_hot"))
- {
- c = fgetc (fp);
- if (isspace (c))
- {
- x_hot = get_int (fp);
- continue;
- }
- }
- else if (match (fp, "y_hot"))
- {
- c = fgetc (fp);
- if (isspace (c))
- {
- y_hot = get_int (fp);
- continue;
- }
- }
- }
-
- c = cpp_fgetc (fp);
- }
- while (c != '{' && c != EOF);
-
- if (c == EOF)
- {
- g_message (_("XBM: cannot read header (ftell == %ld)\n"), ftell (fp));
- return -1;
- }
-
- if (width == 0)
- {
- g_message (_("XBM: no image width specified\n"));
- return -1;
- }
-
- if (height == 0)
- {
- g_message (_("XBM: no image height specified\n"));
- return -1;
- }
-
- if (intbits == 0)
- {
- g_message (_("XBM: no image data type specified\n"));
- return -1;
- }
-
- image_ID = gimp_image_new (width, height, GIMP_INDEXED);
- gimp_image_set_filename (image_ID, filename);
-
- if (comment)
- {
- GimpParasite *parasite;
-
- parasite = gimp_parasite_new ("gimp-comment",
- GIMP_PARASITE_PERSISTENT,
- strlen (comment) + 1, (gpointer) comment);
- gimp_image_parasite_attach (image_ID, parasite);
- gimp_parasite_free (parasite);
-
- g_free (comment);
- }
-
- x_hot = CLAMP (x_hot, 0, width);
- y_hot = CLAMP (y_hot, 0, height);
-
- if (x_hot > 0 || y_hot > 0)
- {
- GimpParasite *parasite;
- gchar *str;
-
- str = g_strdup_printf ("%d %d", x_hot, y_hot);
- parasite = gimp_parasite_new ("hot-spot",
- GIMP_PARASITE_PERSISTENT,
- strlen (str) + 1, (gpointer) str);
- g_free (str);
- gimp_image_parasite_attach (image_ID, parasite);
- gimp_parasite_free (parasite);
- }
-
- /* Set a black-and-white colormap. */
- gimp_image_set_cmap (image_ID, cmap, 2);
-
- layer_ID = gimp_layer_new (image_ID,
- _("Background"),
- width, height,
- GIMP_INDEXED_IMAGE,
- 100,
- GIMP_NORMAL_MODE);
- gimp_image_add_layer (image_ID, layer_ID, 0);
-
- drawable = gimp_drawable_get (layer_ID);
-
- /* Prepare the pixel region. */
- gimp_pixel_rgn_init (&pixel_rgn, drawable, 0, 0, width, height, TRUE, FALSE);
-
- /* Allocate the data. */
- tileheight = gimp_tile_height ();
- data = (guchar *) g_malloc (width * tileheight);
-
- for (i = 0; i < height; i += tileheight)
- {
- tileheight = MIN (tileheight, height - i);
-
- #ifdef VERBOSE
- if (verbose > 1)
- printf ("XBM: reading %dx(%d+%d) pixel region\n", width, i,
- tileheight);
- #endif
-
- /* Parse the data from the file */
- for (j = 0; j < tileheight; j ++)
- {
- /* Read each row. */
- rowoffset = j * width;
- for (k = 0; k < width; k ++)
- {
- /* Expand each integer into INTBITS pixels. */
- if (k % intbits == 0)
- {
- c = get_int (fp);
-
- /* Flip all the bits so that 1's become black and
- 0's become white. */
- c ^= 0xffff;
- }
-
- data[rowoffset + k] = c & 1;
- c >>= 1;
- }
- }
-
- /* Put the data into the image. */
- gimp_progress_update ((double) (i + tileheight) / (double) height);
- gimp_pixel_rgn_set_rect (&pixel_rgn, data, 0, i, width, tileheight);
- }
-
- g_free (data);
-
- gimp_drawable_flush (drawable);
- gimp_drawable_detach (drawable);
-
- fclose (fp);
-
- return image_ID;
- }
-
- static gboolean
- save_image (gchar *filename,
- gchar *prefix,
- gchar *comment,
- gboolean save_mask,
- gint32 image_ID,
- gint32 drawable_ID)
- {
- GimpDrawable *drawable;
- GimpPixelRgn pixel_rgn;
- FILE *fp;
-
- gint width, height, colors, dark;
- gint intbits, lineints, need_comma, nints, rowoffset, tileheight;
- gint c, i, j, k, thisbit;
-
- gboolean has_alpha;
- gint bpp;
-
- guchar *data, *cmap, *name_buf, *intfmt;
-
- drawable = gimp_drawable_get (drawable_ID);
- width = drawable->width;
- height = drawable->height;
- cmap = gimp_image_get_cmap (image_ID, &colors);
-
- if (!gimp_drawable_is_indexed (drawable_ID) || colors > 2)
- {
- /* The image is not black-and-white. */
- g_message (_("The image which you are trying to save as\n"
- "an XBM contains more than two colors.\n\n"
- "Please convert it to a black and white\n"
- "(1-bit) indexed image and try again."));
- return FALSE;
- }
-
- has_alpha = gimp_drawable_has_alpha (drawable_ID);
-
- if (!has_alpha && save_mask)
- {
- g_message (_("You cannot save a cursor mask for an image\n"
- "which has no alpha channel."));
- return FALSE;
- }
-
- bpp = gimp_drawable_bpp (drawable_ID);
-
- name_buf = g_strdup_printf (_("Saving %s:"), filename);
- gimp_progress_init (name_buf);
- g_free (name_buf);
-
- /* Figure out which color is black, and which is white. */
- dark = 0;
- if (colors > 1)
- {
- gint first, second;
-
- /* Maybe the second color is darker than the first. */
- first = (cmap[0] * cmap[0]) + (cmap[1] * cmap[1]) + (cmap[2] * cmap[2]);
- second = (cmap[3] * cmap[3]) + (cmap[4] * cmap[4]) + (cmap[5] * cmap[5]);
-
- if (second < first)
- dark = 1;
- }
-
- /* Now actually save the data. */
- fp = fopen (filename, "w");
- if (!fp)
- {
- g_message (_("XBM: cannot create \"%s\"\n"), filename);
- return FALSE;
- }
-
- /* Maybe write the image comment. */
- if (*comment)
- fprintf (fp, "/* %s */\n", comment);
-
- /* Write out the image height and width. */
- fprintf (fp, "#define %s_width %d\n", prefix, width);
- fprintf (fp, "#define %s_height %d\n", prefix, height);
-
- /* Write out the hotspot, if any. */
- if (xsvals.use_hot)
- {
- fprintf (fp, "#define %s_x_hot %d\n", prefix, xsvals.x_hot);
- fprintf (fp, "#define %s_y_hot %d\n", prefix, xsvals.y_hot);
- }
-
- /* Now write the actual data. */
- if (xsvals.x10_format)
- {
- /* We can fit 9 hex shorts on a single line. */
- lineints = 9;
- intbits = 16;
- intfmt = " 0x%04x";
- }
- else
- {
- /* We can fit 12 hex chars on a single line. */
- lineints = 12;
- intbits = 8;
- intfmt = " 0x%02x";
- }
-
- fprintf (fp, "static %s %s_bits[] = {\n ",
- xsvals.x10_format ? "unsigned short" : "unsigned char", prefix);
-
- /* Allocate a new set of pixels. */
- tileheight = gimp_tile_height ();
- data = (guchar *) g_malloc (width * tileheight * bpp);
-
- gimp_pixel_rgn_init (&pixel_rgn, drawable, 0, 0, width, height,
- FALSE, FALSE);
-
- /* Write out the integers. */
- need_comma = 0;
- nints = 0;
- for (i = 0; i < height; i += tileheight)
- {
- /* Get a horizontal slice of the image. */
- tileheight = MIN (tileheight, height - i);
- gimp_pixel_rgn_get_rect (&pixel_rgn, data, 0, i, width, tileheight);
-
- #ifdef VERBOSE
- if (verbose > 1)
- printf ("TGA: writing %dx(%d+%d) pixel region\n",
- width, i, tileheight);
- #endif
-
- for (j = 0; j < tileheight; j ++)
- {
- /* Write out a row at a time. */
- rowoffset = j * width * bpp;
- c = 0;
- thisbit = 0;
-
- for (k = 0; k < width * bpp; k += bpp)
- {
- if (k != 0 && thisbit == intbits)
- {
- /* Output a completed integer. */
- if (need_comma)
- fputc (',', fp);
- need_comma = 1;
-
- /* Maybe start a new line. */
- if (nints ++ >= lineints)
- {
- nints = 1;
- fputs ("\n ", fp);
- }
- fprintf (fp, intfmt, c);
-
- /* Start a new integer. */
- c = 0;
- thisbit = 0;
- }
-
- /* Pack INTBITS pixels into an integer. */
- if (save_mask)
- {
- c |= ((data[rowoffset + k + 1] < 128) ? 0 : 1) << (thisbit ++);
- }
- else
- {
- if (has_alpha && (data[rowoffset + k + 1] < 128))
- c |= 0 << (thisbit ++);
- else
- c |= ((data[rowoffset + k] == dark) ? 1 : 0) << (thisbit ++);
- }
- }
-
- if (thisbit != 0)
- {
- /* Write out the last oddball int. */
- if (need_comma)
- fputc (',', fp);
- need_comma = 1;
-
- /* Maybe start a new line. */
- if (nints ++ == lineints)
- {
- nints = 1;
- fputs ("\n ", fp);
- }
- fprintf (fp, intfmt, c);
- }
- }
-
- gimp_progress_update ((double) (i + tileheight) / (double) height);
- }
-
- /* Write the trailer. */
- fprintf (fp, " };\n");
- fclose (fp);
- return TRUE;
- }
-
- static gint
- save_dialog (gint32 drawable_ID)
- {
- GtkWidget *dlg;
- GtkWidget *frame;
- GtkWidget *vbox;
- GtkWidget *toggle;
- GtkWidget *table;
- GtkWidget *entry;
- GtkWidget *spinbutton;
- GtkObject *adj;
-
- dlg = gimp_dialog_new (_("Save as XBM"), "xbm",
- gimp_standard_help_func, "filters/xbm.html",
- GTK_WIN_POS_MOUSE,
- FALSE, TRUE, FALSE,
-
- _("OK"), save_ok_callback,
- NULL, NULL, NULL, TRUE, FALSE,
- _("Cancel"), gtk_widget_destroy,
- NULL, 1, NULL, FALSE, TRUE,
-
- NULL);
-
- gtk_signal_connect (GTK_OBJECT (dlg), "destroy",
- GTK_SIGNAL_FUNC (gtk_main_quit),
- NULL);
-
- /* parameter settings */
- frame = gtk_frame_new (_("XBM Options"));
- gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
- gtk_container_set_border_width (GTK_CONTAINER (frame), 6);
- gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), frame, TRUE, TRUE, 0);
- gtk_widget_show (frame);
-
- vbox = gtk_vbox_new (FALSE, 4);
- gtk_container_set_border_width (GTK_CONTAINER (vbox), 4);
- gtk_container_add (GTK_CONTAINER (frame), vbox);
-
- /* X10 format */
- toggle = gtk_check_button_new_with_label (_("X10 Format Bitmap"));
- gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
- gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
- GTK_SIGNAL_FUNC (gimp_toggle_button_update),
- &xsvals.x10_format);
- gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), xsvals.x10_format);
- gtk_widget_show (toggle);
-
- table = gtk_table_new (2, 2, FALSE);
- gtk_table_set_col_spacings (GTK_TABLE (table), 4);
- gtk_table_set_row_spacings (GTK_TABLE (table), 2);
- gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
- gtk_widget_show (table);
-
- /* prefix */
- entry = gtk_entry_new_with_max_length (MAX_PREFIX);
- gtk_entry_set_text (GTK_ENTRY (entry), xsvals.prefix);
- gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
- _("Identifier Prefix:"), 1.0, 0.5,
- entry, 1, TRUE);
- gtk_signal_connect (GTK_OBJECT (entry), "changed",
- GTK_SIGNAL_FUNC (prefix_entry_callback),
- NULL);
-
- /* comment string. */
- entry = gtk_entry_new_with_max_length (MAX_COMMENT);
- gtk_widget_set_usize (entry, 240, 0);
- gtk_entry_set_text (GTK_ENTRY (entry), xsvals.comment);
- gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
- _("Comment:"), 1.0, 0.5,
- entry, 1, TRUE);
- gtk_signal_connect (GTK_OBJECT (entry), "changed",
- GTK_SIGNAL_FUNC (comment_entry_callback),
- NULL);
-
- /* hotspot toggle */
- toggle = gtk_check_button_new_with_label (_("Write Hot Spot Values"));
- gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
- gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
- GTK_SIGNAL_FUNC (gimp_toggle_button_update),
- &xsvals.use_hot);
- gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), xsvals.use_hot);
- gtk_widget_show (toggle);
-
- table = gtk_table_new (2, 2, FALSE);
- gtk_table_set_col_spacings (GTK_TABLE (table), 4);
- gtk_table_set_row_spacings (GTK_TABLE (table), 2);
- gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
- gtk_widget_show (table);
-
- gtk_object_set_data (GTK_OBJECT (toggle), "set_sensitive", table);
- gtk_widget_set_sensitive (table, xsvals.use_hot);
-
- spinbutton = gimp_spin_button_new (&adj, xsvals.x_hot, 0,
- gimp_drawable_width (drawable_ID) - 1,
- 1, 1, 1, 0, 0);
- gtk_signal_connect (GTK_OBJECT (adj), "value_changed",
- GTK_SIGNAL_FUNC (gimp_int_adjustment_update),
- &xsvals.x_hot);
- gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
- _("Hot Spot X:"), 1.0, 0.5,
- spinbutton, 1, TRUE);
-
- spinbutton = gimp_spin_button_new (&adj, xsvals.y_hot, 0,
- gimp_drawable_height (drawable_ID) - 1,
- 1, 1, 1, 0, 0);
- gtk_signal_connect (GTK_OBJECT (adj), "value_changed",
- GTK_SIGNAL_FUNC (gimp_int_adjustment_update),
- &xsvals.y_hot);
- gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
- _("Y:"), 1.0, 0.5,
- spinbutton, 1, TRUE);
-
- /* mask file */
- frame = gtk_frame_new (_("Mask File"));
- gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
- gtk_widget_show (frame);
-
- table = gtk_table_new (2, 2, FALSE);
- gtk_container_set_border_width (GTK_CONTAINER (table), 2);
- gtk_table_set_col_spacings (GTK_TABLE (table), 4);
- gtk_table_set_row_spacings (GTK_TABLE (table), 2);
- gtk_container_add (GTK_CONTAINER (frame), table);
- gtk_widget_show (table);
-
- toggle = gtk_check_button_new_with_label (_("Write Extra Mask File"));
- gtk_table_attach_defaults (GTK_TABLE (table), toggle, 0, 2, 0, 1);
- gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
- GTK_SIGNAL_FUNC (gimp_toggle_button_update),
- &xsvals.write_mask);
- gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), xsvals.write_mask);
- gtk_widget_show (toggle);
-
- entry = gtk_entry_new_with_max_length (MAX_MASK_EXT);
- gtk_entry_set_text (GTK_ENTRY (entry), xsvals.mask_ext);
- gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
- _("Mask File Extension:"), 1.0, 0.5,
- entry, 1, TRUE);
- gtk_signal_connect (GTK_OBJECT (entry), "changed",
- GTK_SIGNAL_FUNC (mask_ext_entry_callback),
- NULL);
-
- gtk_object_set_data (GTK_OBJECT (toggle), "set_sensitive", entry);
- gtk_widget_set_sensitive (entry, xsvals.write_mask);
-
- gtk_widget_set_sensitive (frame, gimp_drawable_has_alpha (drawable_ID));
-
- /* Done. */
- gtk_widget_show (vbox);
- gtk_widget_show (dlg);
-
- gtk_main ();
- gdk_flush ();
-
- return xsint.run;
- }
-
-
- /* Update the comment string. */
- static void
- comment_entry_callback (GtkWidget *widget,
- gpointer data)
- {
- memset (xsvals.comment, 0, sizeof (xsvals.comment));
- strncpy (xsvals.comment,
- gtk_entry_get_text (GTK_ENTRY (widget)), MAX_COMMENT);
- }
-
- static void
- prefix_entry_callback (GtkWidget *widget,
- gpointer data)
- {
- memset (xsvals.prefix, 0, sizeof (xsvals.prefix));
- strncpy (xsvals.prefix,
- gtk_entry_get_text (GTK_ENTRY (widget)), MAX_PREFIX);
- }
-
- static void
- mask_ext_entry_callback (GtkWidget *widget,
- gpointer data)
- {
- memset (xsvals.prefix, 0, sizeof (xsvals.mask_ext));
- strncpy (xsvals.mask_ext,
- gtk_entry_get_text (GTK_ENTRY (widget)), MAX_MASK_EXT);
- }
-
- static void
- save_ok_callback (GtkWidget *widget,
- gpointer data)
- {
- xsint.run = TRUE;
-
- gtk_widget_destroy (GTK_WIDGET (data));
- }
-